Square Inches to Square Centimeters converter (in² to cm²)
Convert Square Inches (in²) to Square Centimeters (cm²) with this free calculator. Type a value, press Convert, and the page applies the same factor shown in the formula below — no rounded shortcut, and nothing is stored on a server.
Square Centimeters to Square Inches (cm² to in²) ►
How to convert Square Inches to Square Centimeters
1 square inch (in²) is equal to 6.4516 square centimeters (cm²).
cm² = in² × 6.4516
Multiply the area in square inches by 6.4516:
Example: Convert 10 in² to cm²:
cm² = 10 × 6.4516 = 64.516 cm²
What is a Square Inches?
The Square Inches (in²) is the starting or target unit on this page. Use the calculator above to convert values without looking up the factor by hand.
What is a Square Centimeters?
The Square Centimeters (cm²) is the starting or target unit on this page. Use the calculator above to convert values without looking up the factor by hand.
This page converts area from Square Inches into Square Centimeters. One in² equals 6.4516 cm².
Square Inches to Square Centimeters conversion table
Common in² values and the matching cm² result, calculated with the same factor as the widget. Highlight a nearby row if you want a quick check without entering a number.
| Square Inches (in²) | Square Centimeters (cm²) |
|---|---|
| 1 in² | 6.4516 cm² |
| 5 in² | 32.258 cm² |
| 10 in² | 64.516 cm² |
| 50 in² | 322.58 cm² |
| 100 in² | 645.16 cm² |
| 500 in² | 3225.8 cm² |
| 1000 in² | 6451.6 cm² |
How this calculator works
The form on this page is a Square Inches-to-Square Centimeters converter. After you enter a number, JavaScript multiplies or rearranges it with the published conversion factor and writes the cm² result in the output box. The step-by-step panel repeats the arithmetic so you can copy it into homework or a spreadsheet.
Reviewed by Hamsen, founder of GigaTables and a biology engineer. See the about page for how formulas are checked before a tool is published.
FAQ
How many cm² are in 1 in²?
1 in² = 6.4516 cm².
How do I convert Square Inches to Square Centimeters?
Multiply the area in square inches by 6.4516:
Is this in² to cm² converter free?
Yes. GigaTables calculators are free to use in a browser. You do not need an account, and the values you type are not uploaded.